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What causes hyperemesis gravidarum?

Morning sickness, which includes nausea and vomiting, is very common during pregnancy. When it is so severe that it results in weight loss and dehydration, it is called hyperemesis gravidarum. Morning sickness is generally caused by hormonal changes, but the causes for hyperemesis gravidarum are relatively unknown. Severe cases of morning sickness may be associated with conditions that are not related to pregnancy.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.